dt: amd-seattle: add a description of the CPUs and caches

Add a DT description of the CPU and cache hierarchy as found on
the AMD Seattle SOC. Given the tight coupling of the PMU with
the CPUs, move the PMU node into the cpu .dtsi file as well, and
add the missing affinity description.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts

@@ -9,6 +9,7 @@
 /dts-v1/;
 
 /include/ "amd-seattle-soc.dtsi"
+/include/ "amd-seattle-cpus.dtsi"
 
 / {
 	model = "AMD Seattle (Rev.B0) Development Board (Overdrive)";

arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts

@@ -9,6 +9,7 @@
 /dts-v1/;
 
 /include/ "amd-seattle-soc.dtsi"
+/include/ "amd-seattle-cpus.dtsi"
 
 / {
 	model = "AMD Seattle (Rev.B1) Development Board (Overdrive)";

arch/arm64/boot/dts/amd/amd-seattle-cpus.dtsi

+// SPDX-License-Identifier: GPL-2.0
+
+/ {
+	cpus {
+		#address-cells = <0x1>;
+		#size-cells = <0x0>;
+
+		cpu-map {
+			cluster0 {
+				core0 {
+					cpu = <&CPU0>;
+				};
+				core1 {
+					cpu = <&CPU1>;
+				};
+			};
+			cluster1 {
+				core0 {
+					cpu = <&CPU2>;
+				};
+				core1 {
+					cpu = <&CPU3>;
+				};
+			};
+			cluster2 {
+				core0 {
+					cpu = <&CPU4>;
+				};
+				core1 {
+					cpu = <&CPU5>;
+				};
+			};
+			cluster3 {
+				core0 {
+					cpu = <&CPU6>;
+				};
+				core1 {
+					cpu = <&CPU7>;
+				};
+			};
+		};
+
+		CPU0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x0>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_0>;
+
+		};
+
+		CPU1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x1>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_0>;
+		};
+
+		CPU2: cpu@100 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x100>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_1>;
+		};
+
+		CPU3: cpu@101 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x101>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_1>;
+		};
+
+		CPU4: cpu@200 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x200>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_2>;
+		};
+
+		CPU5: cpu@201 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x201>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_2>;
+		};
+
+		CPU6: cpu@300 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x300>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_3>;
+		};
+
+		CPU7: cpu@301 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a57";
+			reg = <0x301>;
+			enable-method = "psci";
+
+			i-cache-size = <0xC000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			l2-cache = <&L2_3>;
+		};
+	};
+
+	L2_0: l2-cache0 {
+		cache-size = <0x100000>;
+		cache-line-size = <64>;
+		cache-sets = <1024>;
+		cache-unified;
+		next-level-cache = <&L3>;
+	};
+
+	L2_1: l2-cache1 {
+		cache-size = <0x100000>;
+		cache-line-size = <64>;
+		cache-sets = <1024>;
+		cache-unified;
+		next-level-cache = <&L3>;
+	};
+
+	L2_2: l2-cache2 {
+		cache-size = <0x100000>;
+		cache-line-size = <64>;
+		cache-sets = <1024>;
+		cache-unified;
+		next-level-cache = <&L3>;
+	};
+
+	L2_3: l2-cache3 {
+		cache-size = <0x100000>;
+		cache-line-size = <64>;
+		cache-sets = <1024>;
+		cache-unified;
+		next-level-cache = <&L3>;
+	};
+
+	L3: l3-cache {
+		cache-level = <3>;
+		cache-size = <0x800000>;
+		cache-line-size = <64>;
+		cache-sets = <8192>;
+		cache-unified;
+	};
+
+	pmu {
+		compatible = "arm,cortex-a57-pmu";
+		interrupts = <0x0 0x7 0x4>,
+			     <0x0 0x8 0x4>,
+			     <0x0 0x9 0x4>,
+			     <0x0 0xa 0x4>,
+			     <0x0 0xb 0x4>,
+			     <0x0 0xc 0x4>,
+			     <0x0 0xd 0x4>,
+			     <0x0 0xe 0x4>;
+		interrupt-affinity = <&CPU0>,
+				     <&CPU1>,
+				     <&CPU2>,
+				     <&CPU3>,
+				     <&CPU4>,
+				     <&CPU5>,
+				     <&CPU6>,
+				     <&CPU7>;
+	};
+};

arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi

@@ -38,18 +38,6 @@ timer {
 			     <1 10 0xff04>;
 	};
 
-	pmu {
-		compatible = "arm,armv8-pmuv3";
-		interrupts = <0 7 4>,
-			     <0 8 4>,
-			     <0 9 4>,
-			     <0 10 4>,
-			     <0 11 4>,
-			     <0 12 4>,
-			     <0 13 4>,
-			     <0 14 4>;
-	};
-
 	smb0: smb {
 		compatible = "simple-bus";
 		#address-cells = <2>;